Enveloping membrane for discharging an enclosed agent, a...

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 13/02 (2006.01) B01J 13/04 (2006.01) B01J 13/06 (2006.01) B01J 13/10 (2006.01)

Patent

CA 2636812

The invention relates to an enveloping membrane for discharging an enclosed agent in an aqueous medium. The aqueous solution of an oxidizing chlorine- oxygen compound is enclosed is said enveloping membrane which is insoluble in a neutral aqueous medium. In an advantageous embodiment, the enveloping membrane represents a capsule structure, particularly according to the core/shell principle. The core has a spongy, moist structure and contains the aqueous solution of an oxidizing chlorine-oxygen compound while the shell is water-insoluble and is provided with pores to discharge the chlorine-oxygen compound over an extended period of time, particularly in an aqueous medium. The enveloping membrane is suitable foremost for disinfecting and purifying/cleaning liquids and substrate surfaces, especially in the form of fabrics, filter materials, membranes, gaps, joints, and/or filling elements, for disinfecting water, particularly drinking water and bath water, and filter materials, where the inventive enveloping membrane discharges the agent into the medium or onto the substrate that is to be treated for an extended period of time, especially in a continuous and metered form.

L'invention concerne une membrane d'enveloppe destinée à libérer un agent encapsulé dans un milieu aqueux. La membrane d'enveloppe contient la solution aqueuse d'un composé chlore-oxygène à action oxydative. La membrane d'enveloppe est insoluble dans un milieu aqueux neutre. Dans un mode de réalisation préféré, la membrane d'enveloppe se présente sous la forme d'une structure de capsule, notamment selon le principe de noyau/enveloppe. Le noyau présente une structure spongieuse humide et contient la solution aqueuse d'un composé chlore-oxygène à action oxydative. L'enveloppe est insoluble dans l'eau et présente des pores pour la libération durable du composé chlore-oxygène, notamment dans un milieu aqueux. La membrane d'enveloppe sert notamment à la désinfection et au nettoyage de liquides et de surfaces de substrats, notamment sous forme de tissus, de matériaux de filtrage, de membranes, d'entailles, de joints et/ou de corps de remplissage, à la désinfection de l'eau, notamment d'eau potable et de baignade, et à la désinfection de matériaux de filtrage. Dans ce cas, la membrane d'enveloppe libère l'agent actif de façon durable, notamment sous forme continue et dosée, dans le milieu à traiter ou sur le substrat à traiter.

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